how to find

i was wondering if i could some how find the error settings like when 
you do include("text.txt"); and its not there it pops up with warning: 
main(text.txt): cant be found or something like that, is there a way 
that i can find the place that has the text for that so lets say i could 
put instead of warning its hazard or something like that? i just need to 
find the file that tells you where the error is at and stuff

what im trying to do is i host a website with a company but i also host 
my website from home, i have had a hard time keeping my internet up for 
some reason the modem keeps loosing connection so what i want to do is 
from my website that is hosted from another company i want to have a web 
page that will have something like

<?php
include("ipaddressofhome/index.php");
?>
if it cant find the file then it will redirect to another page

if there is an easier way can you please let me know.

-- 
Michael Mason
CEO and Founder of mikemrm.com
-Born to be a gamer!